90 lines
2.4 KiB
C
90 lines
2.4 KiB
C
|
/*
|
||
|
|
LUFA Library
|
||
|
|
Copyright (C) Dean Camera, 2017.
|
||
|
|
|
||
|
|
dean [at] fourwalledcubicle [dot] com
|
||
|
|
www.lufa-lib.org
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*
|
||
|
|
Copyright 2017 Dean Camera (dean [at] fourwalledcubicle [dot] com)
|
||
|
|
|
||
|
|
Permission to use, copy, modify, distribute, and sell this
|
||
|
|
software and its documentation for any purpose is hereby granted
|
||
|
|
without fee, provided that the above copyright notice appear in
|
||
|
|
all copies and that both that the copyright notice and this
|
||
|
|
permission notice and warranty disclaimer appear in supporting
|
||
|
|
documentation, and that the name of the author not be used in
|
||
|
|
advertising or publicity pertaining to distribution of the
|
||
|
|
software without specific, written prior permission.
|
||
|
|
|
||
|
|
The author disclaims all warranties with regard to this
|
||
|
|
software, including all implied warranties of merchantability
|
||
|
|
and fitness. In no event shall the author be liable for any
|
||
|
|
special, indirect or consequential damages or any damages
|
||
|
|
whatsoever resulting from loss of use, data or profits, whether
|
||
|
|
in an action of contract, negligence or other tortious action,
|
||
|
|
arising out of or in connection with the use or performance of
|
||
|
|
this software.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#define __INCLUDE_FROM_USBTASK_C
|
||
|
|
#define __INCLUDE_FROM_USB_DRIVER
|
||
|
|
#include "USBTask.h"
|
||
|
|
|
||
|
|
volatile bool USB_IsInitialized;
|
||
|
|
USB_Request_Header_t USB_ControlRequest;
|
||
|
|
|
||
|
|
#if defined(USB_CAN_BE_HOST) && !defined(HOST_STATE_AS_GPIOR)
|
||
|
|
volatile uint8_t USB_HostState;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(USB_CAN_BE_DEVICE) && !defined(DEVICE_STATE_AS_GPIOR)
|
||
|
|
volatile uint8_t USB_DeviceState;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
void USB_USBTask(void)
|
||
|
|
{
|
||
|
|
#if defined(USB_CAN_BE_BOTH)
|
||
|
|
if (USB_CurrentMode == USB_MODE_Device)
|
||
|
|
USB_DeviceTask();
|
||
|
|
else if (USB_CurrentMode == USB_MODE_Host)
|
||
|
|
USB_HostTask();
|
||
|
|
#elif defined(USB_CAN_BE_HOST)
|
||
|
|
USB_HostTask();
|
||
|
|
#elif defined(USB_CAN_BE_DEVICE)
|
||
|
|
USB_DeviceTask();
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
#if defined(USB_CAN_BE_DEVICE)
|
||
|
|
static void USB_DeviceTask(void)
|
||
|
|
{
|
||
|
|
if (USB_DeviceState == DEVICE_STATE_Unattached)
|
||
|
|
return;
|
||
|
|
|
||
|
|
uint8_t PrevEndpoint = Endpoint_GetCurrentEndpoint();
|
||
|
|
|
||
|
|
Endpoint_SelectEndpoint(ENDPOINT_CONTROLEP);
|
||
|
|
|
||
|
|
if (Endpoint_IsSETUPReceived())
|
||
|
|
USB_Device_ProcessControlRequest();
|
||
|
|
|
||
|
|
Endpoint_SelectEndpoint(PrevEndpoint);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(USB_CAN_BE_HOST)
|
||
|
|
static void USB_HostTask(void)
|
||
|
|
{
|
||
|
|
uint8_t PrevPipe = Pipe_GetCurrentPipe();
|
||
|
|
|
||
|
|
Pipe_SelectPipe(PIPE_CONTROLPIPE);
|
||
|
|
|
||
|
|
USB_Host_ProcessNextHostState();
|
||
|
|
|
||
|
|
Pipe_SelectPipe(PrevPipe);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|